/*
 * Copyright 2008 The Apache Software Foundation
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.mybatis.generator.codegen.ibatis2.dao.elements;

import static org.mybatis.generator.internal.util.StringUtility.stringHasValue;
import static org.mybatis.generator.internal.util.messages.Messages.getString;

import org.mybatis.generator.api.DAOMethodNameCalculator;
import org.mybatis.generator.api.dom.java.Interface;
import org.mybatis.generator.api.dom.java.JavaVisibility;
import org.mybatis.generator.api.dom.java.TopLevelClass;
import org.mybatis.generator.codegen.AbstractGenerator;
import org.mybatis.generator.codegen.ibatis2.dao.templates.AbstractDAOTemplate;
import org.mybatis.generator.config.PropertyRegistry;
import org.mybatis.generator.internal.DefaultDAOMethodNameCalculator;
import org.mybatis.generator.internal.ExtendedDAOMethodNameCalculator;
import org.mybatis.generator.internal.ObjectFactory;

/**
 * @author Jeff Butler
 */
public abstract class AbstractDAOElementGenerator extends AbstractGenerator
{
    public abstract void addInterfaceElements(Interface interfaze);
    
    public abstract void addImplementationElements(TopLevelClass topLevelClass);
    
    protected AbstractDAOTemplate   daoTemplate;
    private DAOMethodNameCalculator dAOMethodNameCalculator;
    private JavaVisibility          exampleMethodVisibility;
    
    public AbstractDAOElementGenerator()
    {
        super();
    }
    
    public void setDAOTemplate(AbstractDAOTemplate abstractDAOTemplate)
    {
        this.daoTemplate = abstractDAOTemplate;
    }
    
    public DAOMethodNameCalculator getDAOMethodNameCalculator()
    {
        if (dAOMethodNameCalculator == null) {
            String type = context.getJavaClientGeneratorConfiguration()
                .getProperty(PropertyRegistry.DAO_METHOD_NAME_CALCULATOR);
            if (stringHasValue(type)) {
                if ("extended".equalsIgnoreCase(type)) { //$NON-NLS-1$
                    type = ExtendedDAOMethodNameCalculator.class.getName();
                }
                else if ("default".equalsIgnoreCase(type)) { //$NON-NLS-1$
                    type = DefaultDAOMethodNameCalculator.class.getName();
                }
            }
            else {
                type = DefaultDAOMethodNameCalculator.class.getName();
            }
            
            try {
                dAOMethodNameCalculator = (DAOMethodNameCalculator) ObjectFactory.createInternalObject(type);
            }
            catch (Exception e) {
                dAOMethodNameCalculator = new DefaultDAOMethodNameCalculator();
                warnings.add(getString("Warning.17", type, e.getMessage())); //$NON-NLS-1$
            }
        }
        
        return dAOMethodNameCalculator;
    }
    
    public JavaVisibility getExampleMethodVisibility()
    {
        if (exampleMethodVisibility == null) {
            String type = context.getJavaClientGeneratorConfiguration()
                .getProperty(PropertyRegistry.DAO_EXAMPLE_METHOD_VISIBILITY);
            if (stringHasValue(type)) {
                if ("public".equalsIgnoreCase(type)) { //$NON-NLS-1$
                    exampleMethodVisibility = JavaVisibility.PUBLIC;
                }
                else if ("private".equalsIgnoreCase(type)) { //$NON-NLS-1$
                    exampleMethodVisibility = JavaVisibility.PRIVATE;
                }
                else if ("protected".equalsIgnoreCase(type)) { //$NON-NLS-1$
                    exampleMethodVisibility = JavaVisibility.PROTECTED;
                }
                else if ("default".equalsIgnoreCase(type)) { //$NON-NLS-1$
                    exampleMethodVisibility = JavaVisibility.DEFAULT;
                }
                else {
                    exampleMethodVisibility = JavaVisibility.PUBLIC;
                    warnings.add(getString("Warning.16", type)); //$NON-NLS-1$
                }
            }
            else {
                exampleMethodVisibility = JavaVisibility.PUBLIC;
            }
        }
        
        return exampleMethodVisibility;
    }
}
